Bottle portion



FIG. 1 is a perspective view showing the new design for a bottle portion;

FIG. 2 is a front elevation view thereof, the rear elevational view being identical except for the unclaimed thread;

FIG. 3 is a left side elevation view thereof, the right side elevational view being identical except for the unclaimed thread; and,

FIG. 4 is a bottom plan view thereof.

The broken line showing in the drawings is for environmental purposes only and forms no part of the claimed design. 

The ornamental design for a bottle portion, as shown and described. 